HLADKA, L. I.; HRYTSENKO, V. H. The concept of forming a learning environment based on cloud services Google apps for education. CTE Workshop Proceedings, Kryvyi Rih, Ukraine, v. 1, p. 107–108, 2013. DOI: 10.55056/cte.151. Disponível em: https://acnsci.org/journal/index.php/cte/article/view/151.. Acesso em: 27 jun. 2026.